Drug

Procarbazine Hydrochloride

54 flagged reaction(s) · 4,362 total co-reports · max PRR 40.4

Important: Reactions below are the flagged terms from this drug’s FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate disproportionality in spontaneous reporting, not causation. Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.

	Reaction	Co-reports (a)	PRR	ROR	Signal
1	Blood Count Abnormal	132	40.4	41.6	signal
2	Full Blood Count Abnormal	39	17.3	17.5	signal
3	Hepatic Cytolysis	42	16.1	16.2	signal
4	Platelet Count Decreased	239	10.5	11.0	signal
5	White Blood Cell Count Decreased	229	9.9	10.4	signal
6	Myelodysplastic Syndrome	28	9.1	9.1	signal
7	Nerve Injury	21	8.8	8.8	signal
8	Polyneuropathy	15	5.9	5.9	signal
9	Nausea	973	5.8	7.1	signal
10	Constipation	265	5.7	6.0	signal
11	Red Blood Cell Count Decreased	31	5.1	5.1	signal
12	Fatigue	829	5.0	5.9	signal
13	Stomatitis	63	4.9	4.9	signal
14	Neutropenia	132	4.6	4.7	signal
15	Blood Test Abnormal	13	4.3	4.3	signal
16	Thrombocytopenia	100	4.2	4.3	signal
17	Disease Progression	95	3.8	3.8	signal
18	Decreased Appetite	177	3.6	3.7	signal
19	Respiratory Disorder	21	3.3	3.3	signal
20	Mucosal Inflammation	18	3.2	3.2	signal
21	Cytopenia	8	3.1	3.1	signal
22	Neutrophil Count Decreased	27	3.1	3.1	signal
23	Neuropathy Peripheral	63	3.1	3.1	signal
24	Febrile Neutropenia	44	3.1	3.1	signal
25	Acute Hepatic Failure	9	3.1	3.1	signal
26	Herpes Zoster	38	3.1	3.1	signal
27	Vomiting	304	3.0	3.2	signal
28	Haematotoxicity	6	3.0	3.0	signal
29	Bone Marrow Failure	13	3.0	3.0	signal
30	Urticaria	103	2.9	2.9	signal
31	Septic Shock	24	2.6	2.6	signal
32	Full Blood Count Decreased	11	2.5	2.6	signal
33	Pancytopenia	30	2.5	2.5	signal
34	Myocardial Ischaemia	6	2.4	2.4	no signal
35	Lymphoma	8	2.4	2.4	signal
36	Acute Myeloid Leukaemia	8	2.4	2.4	signal
37	Leukopenia	25	2.3	2.3	signal
38	Rash Generalised	13	2.3	2.3	signal
39	Mouth Ulceration	10	2.2	2.2	signal
40	Neoplasm Progression	16	2.1	2.1	signal
41	Bone Pain	26	2.1	2.1	signal
42	Agranulocytosis	8	2.0	2.0	no signal
43	Osteonecrosis	14	2.0	2.0	no signal
44	Toxic Skin Eruption	4	1.8	1.8	no signal
45	Laboratory Test Abnormal	11	1.7	1.7	no signal
46	Hepatocellular Injury	5	1.6	1.6	no signal
47	Visual Acuity Reduced	11	1.5	1.5	no signal
48	Brain Neoplasm	3	1.5	1.5	no signal
49	Cytomegalovirus Infection	5	1.4	1.4	no signal
50	Pneumocystis Jirovecii Pneumonia	3	1.4	1.4	no signal
51	Malignant Neoplasm Progression	28	1.3	1.3	no signal
52	Myelosuppression	8	1.1	1.1	no signal
53	Drug Toxicity	3	1.0	1.0	no signal
54	Hepatic Cancer	5	1.0	1.0	no signal